The Del-Ton complete upper receiver assembly features a flattop upper receiver with a 14.5" government profile chrome moly barrel. The 5.56x45mm NATO chamber, 1 in 9" twist, and M4 feed ramps ensure reliability with a wide variety of commercial and surplus ammunition. The A3 upper features a carbine length gas system and sight radius. The barrel is threaded 1/2"-28 with an A2 flash hider. Steel parts are finished with a phosphate coating, the aluminum upper is hard coat anodized.

Technical Information

Upper Receiver Type: A3 Flat-Top

Barrel Length: 14.5"

Barrel Contour: Government Contour

Barrel Material: Chrome Moly

Muzzle Thread Pattern: 1/2"-28

Chrome Lined: Yes

Barrel Finish: Black Matte

Twist Rate: 1 in 9"

Chamber: 5.56x45mm NATO

M4 Feed Ramps: Yes

Muzzle Device: A2 Flash Hider

Gas System Length: Carbine

Gas Block Diameter: .750"

Handguard: M4 Polymer Handguards

Sights: A2 Front Sight

Bolt Carrier Assembly Included: Yes

Bolt Carrier Type: Commercial

Please Note: An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.

Please Note: Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.

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